feat(images): optional openSUSE Leap 16 image builder

Add scripts/70-opensuse-image.sh, modeled on 60-rhel-image.sh: pulls
images:opensuse/16.0, installs sshd + universal tooling via zypper,
cleans caches, and publishes vpsmgr/opensuse-sshd (base deleted).

- Register the alias in imageLabels so the reinstall dialog shows
  "openSUSE Leap 16"; extend collectManagedImages tests
- Leap 16 ships systemd-networkd, so panel IPv6 config takes the
  existing Debian networkd branch — no runtime code changes needed
- Optional: not part of install.sh, keeping small hosts lean
- Document the new image in README (zh/en) and docs/architecture.md

Co-authored-by: CommandCodeBot <noreply@commandcode.ai>

README.en.md

@@ -9,7 +9,7 @@ A lightweight Incus container hosting panel for small VPS instances and low-memo
 ## Feature Details
 
 - Admin panel: users, quotas, domains, IPv6 pool, and audit logs
-- User panel: power control, self-service Debian 13/AlmaLinux 9 reinstall, and domain configuration
+- User panel: power control, self-service Debian 13/AlmaLinux 9/openSUSE Leap 16 reinstall, and domain configuration
 - CPU, memory, and disk oversubscription; quota changes apply live without a container restart
 - Strict container network isolation; prefix mode assigns each container a dedicated `/112` IPv6 block that it can subdivide
 - Traffic is counted in both directions; over-quota containers are rate-limited to 1 Mbps both ways
@@ -76,10 +76,11 @@ Users can define an init script in the panel. It runs as root inside the contain
 
 ## Additional Images
 
-Debian 13 is the default image. To offer AlmaLinux 9 during reinstall, build it once:
+Debian 13 is the default image. To offer AlmaLinux 9 or openSUSE Leap 16 during reinstall, build it once:
 
 ```sh
 sudo bash scripts/60-rhel-image.sh          # AlmaLinux 9
+sudo bash scripts/70-opensuse-image.sh      # openSUSE Leap 16
 ```
 
 The image builder is not run by `install.sh`, keeping the default installation small.

README.md

@@ -9,7 +9,7 @@
 ## 功能细节
 
 - 管理员面板：用户、配额、域名、IPv6 地址池和审计日志
-- 用户面板：电源控制、自助重装 Debian 13/AlmaLinux 9、域名配置
+- 用户面板：电源控制、自助重装 Debian 13/AlmaLinux 9/openSUSE Leap 16、域名配置
 - CPU、内存、磁盘支持超售；配额修改实时生效，无需重启容器
 - 容器网络严格隔离；IPv6 前缀模式下每个容器获得独立 `/112`，可继续划分子网
 - 流量按上下行合计，超额后双向限速至 1 Mbps
@@ -76,10 +76,11 @@ vps config list|set|help
 
 ## 额外镜像
 
-默认镜像是 Debian 13。需要 AlmaLinux 9 时，可手动构建一次：
+默认镜像是 Debian 13。需要 AlmaLinux 9 或 openSUSE Leap 16 时，可手动构建一次：
 
 ```sh
 sudo bash scripts/60-rhel-image.sh          # AlmaLinux 9
+sudo bash scripts/70-opensuse-image.sh      # openSUSE Leap 16
 ```
 
 该脚本不会由 `install.sh` 自动执行，以减少小型主机的安装负担。

docs/architecture.md

@@ -233,6 +233,15 @@ validates that a picked non-default image still exists. Containers run from
 either base with the same light provisioning (random hostname, root password,
 sshd enabled — the service is `sshd` on RHEL and `ssh` on Debian).
 
+## Optional openSUSE image (`vpsmgr/opensuse-sshd`)
+
+`70-opensuse-image.sh` (also NOT part of `install.sh`) builds an openSUSE Leap
+16 image — `images:opensuse/16.0`, published as `vpsmgr/opensuse-sshd` — with
+the same hygiene: sshd + universal tooling via `zypper`, caches/logs cleaned,
+base image deleted after publishing. Leap 16 ships systemd-networkd by default,
+so its IPv6 is configured at runtime by the panel's standard networkd branch
+(static /128 + `fe80::1` gateway), unlike the RHEL-family nmcli path.
+
 ## Per-container provisioning
 
 `mgr.Provision` runs inside every new or reinstalled container and:

scripts/70-opensuse-image.sh

@@ -0,0 +1,113 @@
+#!/usr/bin/env bash
+# 70-opensuse-image.sh — OPTIONAL: build an openSUSE Leap 16 "sshd + universal
+# tooling" image so users can reinstall their container with something other
+# than the default Debian 13. Run as root AFTER install.sh, only when you
+# actually want the extra image (a toy panel should not build it on every box).
+#
+#   sudo bash scripts/70-opensuse-image.sh
+#
+# Same hygiene as 50-image.sh: sshd + common tools baked in, zypper caches and
+# logs cleaned before publishing, base image deleted afterwards.
+set -uo pipefail
+
+
+REMOTE_ALIAS=images:opensuse/16.0
+IMAGE=vpsmgr/opensuse-sshd
+BASE_ALIAS=vpsmgr-opensuse-16
+
+log(){ echo "[70] $*"; }
+
+incus info >/dev/null 2>&1 || { echo "[70] error: Incus not ready" >&2; exit 1; }
+
+if incus image show "$IMAGE" >/dev/null 2>&1; then
+  log "image $IMAGE already present"
+  exit 0
+fi
+
+if ! incus image list "$BASE_ALIAS" --format=csv 2>/dev/null | grep -q .; then
+  log "pulling $REMOTE_ALIAS (fallback base, deleted after build)..."
+  if ! incus image copy "$REMOTE_ALIAS" local: --alias "$BASE_ALIAS"; then
+    log "  warn: image pull failed — nothing built"
+    exit 0
+  fi
+else
+  log "base image $BASE_ALIAS already present"
+fi
+
+log "building $IMAGE (this takes a few minutes)..."
+NAME=tmp-opensuse-builder
+incus delete --force "$NAME" >/dev/null 2>&1 || true
+if incus launch "$BASE_ALIAS" "$NAME"; then
+  # wait until usable
+  for i in $(seq 1 60); do
+    if incus exec "$NAME" -- /bin/true >/dev/null 2>&1; then break; fi
+    sleep 2
+  done
+  # openSUSE brings eth0 up via systemd-networkd, which lags the Incus agent by
+  # a few seconds: running zypper before DHCP has written resolv.conf makes it
+  # die with "Couldn't resolve". Wait until DNS answers, or the builder install
+  # fails and a broken image gets published.
+  DNS_OK=
+  for i in $(seq 1 30); do
+    if incus exec "$NAME" -- getent hosts download.opensuse.org >/dev/null 2>&1; then
+      DNS_OK=1; break
+    fi
+    sleep 2
+  done
+  if [ -z "$DNS_OK" ]; then
+    log "  warn: builder never got working DNS; nothing built"
+    incus delete --force "$NAME" >/dev/null 2>&1 || true
+    incus image delete "$BASE_ALIAS" >/dev/null 2>&1 || true
+  elif incus exec "$NAME" -- sh -c '
+set -e
+# universal user tooling (mirrors the Debian image): sshd, curl/wget need
+# ca-certificates or HTTPS fails; bind-utils is the openSUSE dig/nslookup
+# package. zypper is retried: the mirror can flap on a slow uplink right after
+# boot.
+for attempt in 1 2 3; do
+  zypper --non-interactive install --no-recommends \
+    openssh-server ca-certificates curl wget less bind-utils openssh-clients unzip nano \
+    && break
+  sleep 5
+done
+# hard gate: never publish an image without sshd baked in
+rpm -q openssh-server >/dev/null
+mkdir -p /etc/ssh/sshd_config.d
+printf "PermitRootLogin yes\nPasswordAuthentication yes\n" > /etc/ssh/sshd_config.d/99-vpsmgr.conf
+systemctl enable sshd
+# slim the published image: drop zypper caches and logs
+zypper clean --all 2>/dev/null || true
+rm -rf /var/cache/zypp /var/log/* /tmp/* /var/tmp/* 2>/dev/null || true
+# Drop the baked-in machine-id so every container boots its own: a shared
+# machine-id means a shared DHCPv6 DUID, which breaks dnsmasq lease renewals
+# and drops the container global IPv6 at the 1h lease mark.
+rm -f /etc/machine-id /var/lib/dbus/machine-id 2>/dev/null || true
+# IPv6 for openSUSE containers is configured at runtime by the panel: Leap 16
+# ships systemd-networkd by default, so the panel networkd branch applies
+# (static /128 + fe80::1 gateway, no SLAAC/DHCPv6) — nothing to bake here.
+'; then
+    incus stop "$NAME" --timeout=30 || true
+    if incus publish "$NAME" --alias "$IMAGE"; then
+      incus delete --force "$NAME" || true
+      # keep only the modified image — the base was a build intermediate
+      if incus image delete "$BASE_ALIAS" >/dev/null 2>&1; then
+        log "removed base image $BASE_ALIAS (only $IMAGE kept)"
+      else
+        log "  warn: could not remove base image $BASE_ALIAS"
+      fi
+      log "image published: $IMAGE"
+    else
+      log "  warn: publish FAILED — $IMAGE NOT built (base image kept; re-run to retry)"
+      incus delete --force "$NAME" >/dev/null 2>&1 || true
+      exit 1
+    fi
+  else
+    log "  warn: install in builder failed; nothing built"
+    incus delete --force "$NAME" >/dev/null 2>&1 || true
+    incus image delete "$BASE_ALIAS" >/dev/null 2>&1 || true
+  fi
+else
+  log "  warn: could not launch builder; nothing built"
+fi
+
+echo "[70] done"

src/internal/mgr/image.go

@@ -13,9 +13,10 @@ type ManagedImage struct {
 
 // imageLabels maps known managed image aliases to friendly display names.
 var imageLabels = map[string]string{
-	"vpsmgr/debian-sshd": "Debian 13",
-	"vpsmgr/alma-sshd":   "Alma 9",
-	"vpsmgr/rocky-sshd":  "Rocky 9",
+	"vpsmgr/debian-sshd":    "Debian 13",
+	"vpsmgr/alma-sshd":      "Alma 9",
+	"vpsmgr/rocky-sshd":     "Rocky 9",
+	"vpsmgr/opensuse-sshd":  "openSUSE Leap 16",
 }
 
 // collectManagedImages picks the reinstallable images out of a raw alias list:

src/internal/mgr/image_test.go

@@ -34,6 +34,15 @@ func TestCollectManagedImages(t *testing.T) {
 				{"vpsmgr/rocky-sshd", "Rocky 9"},
 			},
 		},
+		{
+			name:         "default plus opensuse, sorted after alma",
+			defaultAlias: "vpsmgr/debian-sshd",
+			aliases:      []string{"vpsmgr/opensuse-sshd", "vpsmgr/debian-sshd"},
+			want: []ManagedImage{
+				{"vpsmgr/debian-sshd", "Debian 13"},
+				{"vpsmgr/opensuse-sshd", "openSUSE Leap 16"},
+			},
+		},
 		{
 			name:         "default missing locally still offered, unknown alias humanized",
 			defaultAlias: "vpsmgr/debian-sshd",